William Lyon's is one of the largest homebuilders in the West. That's where the homebuilder and its joint venture partners design and build single-family detached and attached houses. Indeed, more than 70% of William Lyon Homes are sold in the states of California, Washington, and Oregon, though homes are also sold in Nevada, Colorado, and Arizona. The builder targets entry-level and move-up buyers; its homes range from $110,000 to $900,000, and sold at an average price of $466,300 each during 2015. William Lyon owns an additional 13,500 development lots and with options to buy almost 4,000 additional lots. Beyond building, it assists with financing through William Lyon Mortgage. The builder went public in 2013.